#ifndef Foundation_Bugcheck_INCLUDED
#define Foundation_Bugcheck_INCLUDED


#include "wch/Foundation.h"
#include <string>
#if defined(_DEBUG)
#	include <iostream>
#endif


namespace wch {


class Bugcheck
	/// This class provides some static methods that are
	/// used by the
	/// gts_assert_dbg(), gts_assert(), gts_check_ptr() 
	/// and gts_bugcheck() macros. 
	/// You should not invoke these methods
	/// directly. Use the macros instead, as they
	/// automatically provide useful context information.
{
public:
	static void assertion(const char* cond, const char* file, int line);
		/// An assertion failed. Break into the debugger, if
		/// possible, then throw an AssertionViolationException.
		
	static void nullPointer(const char* ptr, const char* file, int line);
		/// An null pointer was encountered. Break into the debugger, if
		/// possible, then throw an NullPointerException.

	static void bugcheck(const char* file, int line);
		/// An internal error was encountered. Break into the debugger, if
		/// possible, then throw an BugcheckException.

	static void bugcheck(const char* msg, const char* file, int line);
		/// An internal error was encountered. Break into the debugger, if
		/// possible, then throw an BugcheckException.

	static void debugger(const char* file, int line);
		/// An internal error was encountered. Break into the debugger, if
		/// possible.

	static void debugger(const char* msg, const char* file, int line);
		/// An internal error was encountered. Break into the debugger, if
		/// possible.

protected:
	static std::string what(const char* msg, const char* file, int line);
};


} // namespace wch


//
// useful macros (these automatically supply line number and file name)
//
#if defined(_DEBUG)
	#define gts_assert_dbg(cond) \
		if (!(cond)) wch::Bugcheck::assertion(#cond, __FILE__, __LINE__); else (void) 0
#else
	#define gts_assert_dbg(cond)
#endif


#define gts_assert(cond) \
	if (!(cond)) wch::Bugcheck::assertion(#cond, __FILE__, __LINE__); else (void) 0


#define gts_check_ptr(ptr) \
	if (!(ptr)) wch::Bugcheck::nullPointer(#ptr, __FILE__, __LINE__); else (void) 0


#define gts_bugcheck() \
	wch::Bugcheck::bugcheck(__FILE__, __LINE__)


#define gts_bugcheck_msg(msg) \
	wch::Bugcheck::bugcheck(msg, __FILE__, __LINE__)


#define gts_debugger() \
	wch::Bugcheck::debugger(__FILE__, __LINE__)


#define gts_debugger_msg(msg) \
	wch::Bugcheck::debugger(msg, __FILE__, __LINE__)


#if defined(_DEBUG)
#	define gts_stdout_dbg(outstr) \
	std::cout << __FILE__ << '(' << std::dec << __LINE__ << "):" << outstr << std::endl;
#else
#	define gts_stdout_dbg(outstr)
#endif


#if defined(_DEBUG)
#	define gts_stderr_dbg(outstr) \
		std::cerr << __FILE__ << '(' << std::dec << __LINE__ << "):" << outstr << std::endl;
#else
#	define gts_stderr_dbg(outstr)
#endif


//
// gts_static_assert
// 
// The following was ported from <boost/static_assert.hpp>
//


template <bool x>
struct GTS_STATIC_ASSERTION_FAILURE;


template <> 
struct GTS_STATIC_ASSERTION_FAILURE<true> 
{
	enum 
	{ 
		value = 1 
	}; 
};


template <int x> 
struct gts_static_assert_test
{
};


#if defined(__GNUC__) && (__GNUC__ == 3) && ((__GNUC_MINOR__ == 3) || (__GNUC_MINOR__ == 4))
#define gts_static_assert(B) \
	typedef char GTS_JOIN(gts_static_assert_typedef_, __LINE__) \
        [GTS_STATIC_ASSERTION_FAILURE<(bool) (B)>::value]
#else
#define gts_static_assert(B) \
	typedef gts_static_assert_test<sizeof(GTS_STATIC_ASSERTION_FAILURE<(bool) (B)>)> \
		GTS_JOIN(gts_static_assert_typedef_, __LINE__)
#endif


#endif // Foundation_Bugcheck_INCLUDED
